Andy Murray has turned to Roger Federer's former coach Sven Groeneveld for advice as he looks to build on a straightforward but frustrating first round win at the French Open.

The world number four struggled with the unpredictability of qualifier Eric Prodon's game yesterday but in the end had too much quality for the Frenchman and wrapped up a 6-4 6-1 6-3 victory in an hour and 44 minutes.

Murray has been without a full-time coach since splitting from Miles Maclagan last July and during the clay season has been working mainly with Australian Darren Cahill, who is part of a coaching team available through the Scot's sponsors adidas.

Cahill's television commitments mean he is off limits in Paris so Murray has turned to Swede Groeneveld, who has also coached Greg Rusedski and Ana Ivanovic.

The Scot, who will play Italian qualifier Simone Bolelli in round two, said: "He's got a lot of experience. He's been around so many grand slams. It's more just having that experience around.

"It's not like I'm necessarily talking to him about tactics, but after the match I was just explaining how I was feeling, and he knows that it's normal not to feel your best in the first match, that it's tricky conditions, and the most important thing is to get through.

"It's just having someone that's been there that, if I need the advice, he can give it to me."